Excelsys ultimod, Руководство дизайнера, Страница: 2 / 15

• Low inrush current
• Conducted EMI meets EN 55022 Level B
• AC Fail status signal
• Output sequencing capability
• Global shutdown capability
• Overcurrent protection standard on all outputs.
• Overvoltage protection on all outputs
• Over temperature limiting on all powerMods and PowerPacs
• Safety Agency Approvals: CE Mark, UL, CSA
• DC OK (Power Good) status signal (consult datasheet)
• Wide output voltage adjustment range
• RoHS compliant
Optional Features
• Reversed fan airflow direction
• Conformal coating
• Low leakage current
Section 4.2
Installation Considerations
The UltiMod series models may be mounted on any of three
surfaces using standard M4 screws. The chassis comes with four
mounting points on the base. Maximum allowable torque is 2Nm.
The maximum penetration depth is 6mm. Additionally, the
fleximount TM system on both side walls of the powerPac chassis
facilitates flexible mounting.
When selecting a mounting location and orientation, the unit
should be positioned so air flow is not restricted. Maintain a
50mm minimum clearance at both ends of the UltiMod power
supply and route all cables so airflow is not obstructed. The
standard unit draws air in on the input side and exhausts air out
the load side. If airflow ducting is used, avoid sharp turns that
could create back pressure.
Avoid excessive bending of output power cables after they are
connected to the UltiMod powerMod s. For high current outputs,
use cable-ties to support heavy cables and minimise
mechanical stress on output studs. Be careful not to short-out to
neighboring output studs. UltiMod powerMod s are supplied
with spring washers on all output screws. These (or equivalents)
should be used and thread locking compounds are not required.
The maximum torque recommended on output connectors is
4Nm. Avoid applications in which the unit is exposed to
excessive shock or vibration levels that exceed the specified
levels. In such applications, a shock absorption mounting
design is required.
Section 4.3
UltiMod Mounting Considerations
• Always fill all output slots of the UltiMod. If a slot is not filled
with a powerMod , it should be filled with an Empty Slot Cover
(part numbers XB1, XB2 or XB3). Empty Slot covers are
plastic assemblies whose main function is to fill up an empty
slot. Excessive airflow escape from an empty slot may
degrade thermal performance and result in overheating and
damage to the UltiMod unit. Refer to Section 4.11 for optimum
positioning of powerMods .
• Do not unplug powerMod s while input power is applied to the
powerPac . The UltiMod is not designed for hot-plug applications.
• Do not restrict airflow to the unit. The cooling fan draws air
into the unit and forces it out at the output terminals.
• Always ensure that output screws are properly torqued before
UltiMod Designer Manual
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DESIGNERS’ MANUAL
This UltiMod Designers’ Manual has been prepared by
Excelsys experts to assist qualified engineers and
technicians in understanding the correct system design
practices necessary to achieve maximum versatility and
performance from any of the Ultimod products.
Section 4.1
Overview of UltiMod
The UltiMod series allows users to instantly configure high
efficiency, off-line power supplies. Although very small in size,
(40.4mm high, 260mm long and either 89mm or 127mm wide)
the UltiMod provides up to 1200W of output power. The UX4
delivers up to 600W and can be populated with up to 4
powerMods , the UX6 delivers up to 1200W and can be populated
with up to 6 powerMods .
A complete power supply is configured by selecting and
inserting up to six DC output modules called powerMods to build
a power supply that offers the advantages of a custom supply,
but is assembled from standard and modular building blocks
continuing the Excelsys tradition of industry leading
configurable power supplies.
Manufactured in world class power supply facilities, the UltiMod
is completely user configurable. If output requirements change,
i.e. more power or a different output voltage is needed,
upgrading is easy: simply unlock a single screw and replace
the slide-in powerMod assembly with the preferred alternative.
Allowing additional flexibility, powerMods can be connected in
parallel to increase output power, or in series for higher
voltages (subject to staying within isolation ratings and giving
due consideration to any SELV requirements).
A user-friendly interface on connector J3 of each powerMod
provides control and output sequencing capability, in addition to
useful status indicators. Please consult our Excelsys applications
team if you have other special requirements.
The plug-together architecture facilitates ‘instant’ custom power
solutions with industry leading 17W/in
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power density and up to
92% conversion efficiency. The series is designed for highest
efficiencies and consists of two Input AC front ends ( powerPacs) ,
UX4 and UX6 and 11 DC output powerMods (XgA to XgL).
Standard Features
• Input Voltage: 85V to 264Vac 47 to 63 Hz
• Outputs: Up to 12 isolated outputs
• Full power output to 40°C; Derating to 70°C